JPS6099834U - Protective relay device - Google Patents

Protective relay device

Info

Publication number
JPS6099834U
JPS6099834U JP19045783U JP19045783U JPS6099834U JP S6099834 U JPS6099834 U JP S6099834U JP 19045783 U JP19045783 U JP 19045783U JP 19045783 U JP19045783 U JP 19045783U JP S6099834 U JPS6099834 U JP S6099834U
Authority
JP
Japan
Prior art keywords
protective relay
determining means
determining
output
relay device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP19045783U
Other languages
Japanese (ja)
Inventor
藤田 好人
Original Assignee
株式会社明電舎
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社明電舎 filed Critical 株式会社明電舎
Priority to JP19045783U priority Critical patent/JPS6099834U/en
Publication of JPS6099834U publication Critical patent/JPS6099834U/en
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第1図及び第2図は面積法により実効値を求める場合の
リップルについての説明図、第3図は本考案に係る保護
継電装置の一実施例を示すブロック図、第4図及び第5
図は同実施例におけるリップルの説明図である。 1・・・変流器、2・・・フィルタ、3・・・サンプリ
ングホールド回路、4・・・A/D変換器、5及び8・
・・加算手段、6,9及び10・・・判定手段。
1 and 2 are explanatory diagrams of ripples when calculating the effective value by the area method, FIG. 3 is a block diagram showing an embodiment of the protective relay device according to the present invention, and FIGS. 4 and 5
The figure is an explanatory diagram of ripples in the same embodiment. DESCRIPTION OF SYMBOLS 1... Current transformer, 2... Filter, 3... Sampling hold circuit, 4... A/D converter, 5 and 8...
... Addition means, 6, 9 and 10... Judgment means.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 電力系統からサンプリングされ、A/D変換された系統
情報の絶達値を半波分または一波分加える第1の加算手
段と、この第1の加算手段の出力により保護継電動作の
判定を行う第1の判定手段と、A/D変換されたサンプ
リング値を用いて和算または差算による位相演算を行う
位相変換手段と、この位相変換手段の出力の絶対値を半
波または一波分加える第2の加算手段と、この第2の加
算手段の出力により保護継電動作の判定を行う第2の判
定手段と、前記第1、第2の判定手段の出力のアンドま
たはオアをとる第3の判定手段とを備え、前記第3.の
判定手段の出力により実効値の判定を行うようにしたこ
とを特徴とする保護継電装置。
a first addition means that adds half a wave or one wave of the ultimate value of system information sampled from the power system and A/D converted; and a protective relay operation is determined based on the output of the first addition means. a first determination means for calculating the phase by summation or difference using the A/D converted sampling values; a second determining means for determining protective relay operation based on the output of the second determining means; and a second determining means for determining the AND or OR of the outputs of the first and second determining means. and the third determining means. A protective relay device characterized in that an effective value is determined based on the output of a determining means.
JP19045783U 1983-12-09 1983-12-09 Protective relay device Pending JPS6099834U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19045783U JPS6099834U (en) 1983-12-09 1983-12-09 Protective relay device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19045783U JPS6099834U (en) 1983-12-09 1983-12-09 Protective relay device

Publications (1)

Publication Number Publication Date
JPS6099834U true JPS6099834U (en) 1985-07-08

Family

ID=30410367

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19045783U Pending JPS6099834U (en) 1983-12-09 1983-12-09 Protective relay device

Country Status (1)

Country Link
JP (1) JPS6099834U (en)

Similar Documents

Publication Publication Date Title
JPS59176327U (en) Sampling signal abnormality monitoring device
JPS6099834U (en) Protective relay device
JPS6146485U (en) Radar equipment exciter
JPS5895142U (en) Open phase detection device for three-phase power supply
JPS5848219U (en) Receiving circuit of ultrasonic diagnostic equipment
JPS6061830U (en) voltage limiter circuit
JPS59169543U (en) overcurrent relay
JPS59149435U (en) Overcurrent detection device
JPS59183140U (en) Digital protective relay device
JPS58156337U (en) Protective relay device
JPS6115858U (en) Hum remover
JPS60151232U (en) short circuit protection relay
JPS59127318U (en) phase control circuit
JPS58144274U (en) Configuration of pass-through wattmeter
JPS5971456U (en) capstan control device
JPS60151231U (en) Protective relay input device
JPS58149808U (en) class D amplifier
JPS6096700U (en) Signal transmission device for electric guitar
JPS5883746U (en) Fuse
JPS5822099U (en) Induction motor control device
JPS59178758U (en) Low input selection circuit
JPS58159835U (en) Digital protective relay device
JPS59154671U (en) Maximum value measurement circuit for cylinder pressure
JPS60128435U (en) Earth fault directional relay
JPS59175184U (en) Inverter current detection device